过电位
电催化剂
电解质
催化作用
碳纤维
材料科学
化学工程
氮气
电导率
兴奋剂
无机化学
纳米技术
化学
电化学
电极
有机化学
复合材料
物理化学
光电子学
复合数
工程类
作者
Zexing Wu,Min Young Song,Haiping Li
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2018-01-01
卷期号:165 (11): F976-F980
被引量:13
摘要
Efficient, low-cost, and durable earth-abundant electrocatalysts play an important role for the development of electrocatalytic hydrogen evolution reaction (HER). In this study, a general and facile one-pot strategy was developed for the synthesis of nitrogen doped holey carbon with MoS2-MoP nanosheets (MoS2-MoP-CNS) for HER in alkaline media. The obtained electrocatalyst exhibited lower overpotential (93 mV vs. RHE) relative to MoP-CNS (163 mV) and MoS2-CNS (335 mV) is required to deliver the current density of 10 mA cm−2 in the basic electrolyte. The outstanding electrocatalytic performance of MoS2-MoP-CNS can be attributed to its specific layered structure with abundant holes, which exposes more active sites. Moreover, the peculiar nitrogen doped carbon layers improved conductivity and avoided aggregation of catalysts. Thus, the presented approach for the synthesis of effective catalyst for HER in alkaline medium can easily be extended and used as a general approach for the development of large-scale and low-cost electrocatalysts.
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